Home / 753,904.18-1,040,539.09-447,921.67

Finding the Fourth Proportional to 753,904.18, 1,040,539.09 and 447,921.67

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Solution

The fourth proportional to 753,904.18, 1,040,539.09 and 447,921.67 is: 618,221.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,904.18 : 1,040,539.09 = 447,921.67 : x
  2. Step 2: Convert to fraction form
    753,904.18/1,040,539.09 = 447,921.67/x
  3. Step 3: Cross multiply
    753,904.18x = 1,040,539.09 × 447,921.67
  4. Step 4: Simplify right side
    753,904.18x = 466,080,007,629.53
  5. Step 5: Solve for x
    x = 466,080,007,629.53/753,904.18
  6. Step 6: Final answer
    x = 618,221.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.